AirHint found the following cheapest return flights from Ulaanbaatar (UBN) to Osaka (KIX) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec	Jeju Air
03 Dec - 10 Dec	Hunnu Air
10 Dec - 17 Dec	Hunnu Air
02 Dec - 09 Dec	MIAT Mongolian Airlines
08 Dec - 15 Dec	MIAT Mongolian Airlines
06 Dec - 13 Dec	MIAT Mongolian Airlines
04 Dec - 11 Dec	Jeju Air
05 Dec - 12 Dec	Hunnu Air
01 Dec - 08 Dec	Hunnu Air
12 Dec - 19 Dec	MIAT Mongolian Airlines
30 Dec - 06 Jan	Jeju Air
29 Dec - 05 Jan	Aero Mongolia
31 Dec - 07 Jan	Aero Mongolia
28 Dec - 04 Jan	Jeju Air
25 Dec - 01 Jan	Jeju Air
27 Dec - 03 Jan	Aero Mongolia
26 Dec - 02 Jan	MIAT Mongolian Airlines
26 Dec - 29 Jan	Korean Air
28 Dec - 29 Jan	Korean Air
27 Dec - 29 Jan	Korean Air

Also check the deals for one-way flights from Ulaanbaatar to Osaka in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Osaka

Cheap car rent in Osaka

Cheapest return flights from Ulaanbaatar to Osaka in December from $416

Return flights